An aqueous solution contains 46.6 g of KNO3 in 270.8 mL of solution. What is the molarity of the solution?

A) 0.125 M KNO3 B) 0.172 M KNO3 C) 1.70 M KNO3 D) 0.00801 M KNO3 E) 0.0575 M KNO3 A) 0.125 M KNO3 B) 0.172 M KNO3 C) 1.70 M KNO3 D) 0.00801 M KNO3 E) 0.0575 M KNO3

Calculate the molality of a solution containing 22.4 g of C6H12O6 in 319.6 mL of water (assume a density of 1.00 g/mL).

A) 0.364 m B) 0.0655 m C) 0.000389 m D) 0.389 m E) 0.00695 m A) 0.364 m B) 0.0655 m C) 0.000389 m D) 0.389 m E) 0.00695 m

A 50.0-g sample of ethyl alcohol (C2H5OH) is dissolved in 75.0 g of water. What is the mole fraction of ethyl alcohol?

A) 0.342 B) 0.667 C) 0.414 D) 0.207 E) none of these A) 0.342 B) 0.667 C) 0.414 D) 0.207 E) none of these

Exam 17: Properties of Solutions

Consider that 45.0 g of a protein has been dissolved in 1.00 L of aqueous solution. The osmotic pressure of the solution at 25°C is 12.7 torr. What is the approximate molar mass of the protein?

(Short Answer)

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Question 81

_____ states that the amount of gas dissolved in a solution is directly proportional to the pressure of the gas above the solution.

(Multiple Choice)

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Question 82

A cucumber is placed in a concentrated salt solution. What is most likely to happen?

(Multiple Choice)

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Question 83

A solution is prepared from 31.4 g of a nonvolatile, nondissociating solute and 85.0 g of water. The vapor pressure of the solution at 60°C is 142 torr. The vapor pressure of water at 60°C is 150. torr. What is the molar mass of the solute?

(Short Answer)

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Question 84

Predict the deviation from Raoult's law when two liquids are mixed and the heat of the solution is large and the reaction endothermic.

(Multiple Choice)

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Question 85

The solubility of the salt M_xA_y is 1.0 × 10^-2 mol/L at 25°C. The osmotic pressure exhibited by a solution saturated with M_xA_y at 25°C is 1.22 atm. Determine the values of x and y by assuming ideal behavior.

(Multiple Choice)

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Question 86

Consider pure water separated from an aqueous sugar solution by a semipermeable membrane, which allows water to pass freely but not sugar. After some time has elapsed, the concentration of sugar solution

(Multiple Choice)

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Question 87

Which of the following concentration measures will change in value as the temperature of a solution changes?

(Multiple Choice)

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Question 88

When a nonvolatile solute is added to a volatile solvent, the solution vapor pressure , the boiling point , the freezing point , and the osmotic pressure across a semipermeable membrane .

(Multiple Choice)

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Question 89

How many moles of methanol, CH₃OH, dissolved in 450.0 g of water are needed to make a 2.500 m solution?

(Short Answer)

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Question 90

For each of the following solutions, would you expect it with respect to Raoult's law) to be relatively ideal, to show a positive deviation, or to show a negative deviation? -acetone (C₃H₆O) and water

(Multiple Choice)

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Question 91

The lattice energy of NaI is -686 kJ/mol, and its heat of solution is -7.6 kJ/mol. Calculate the hydration of energy of NaI(s) in kJ/mol.

(Multiple Choice)

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Question 92

An aqueous solution contains 46.6 g of KNO₃ in 270.8 mL of solution. What is the molarity of the solution?

(Multiple Choice)

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Question 93

What is the expected osmotic pressure, in torr, of a 0.0100 M solution of NaCl in water at 25°C?

(Multiple Choice)

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Question 94

A 0.2 molar solution of a solute X, in benzene, displays an osmotic pressure given by the formula Π = (0.1)RT. Which of the following is most likely to be the case?

(Multiple Choice)

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Question 95

Calculate the molality of a solution containing 22.4 g of C₆H₁₂O₆ in 319.6 mL of water (assume a density of 1.00 g/mL).

(Multiple Choice)

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Question 96

A 50.0-g sample of ethyl alcohol (C₂H₅OH) is dissolved in 75.0 g of water. What is the mole fraction of ethyl alcohol?

(Multiple Choice)

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Question 97

A solute added to a solvent raises the boiling point of the solution because

(Multiple Choice)

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Question 98

If a solution exhibits a negative deviation from Raoult's law, the vapor pressure of the solution is __________ what would be expected ideally.

(Multiple Choice)

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Question 99

When 228.8 mL of 0.726 MHCl is diluted with 122.2 mL of water, the molarity of the solution (assuming the volumes are additive) is

(Multiple Choice)

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Question 100

Showing 81 - 100 of 105

Consider that 45.0 g of a protein has been dissolved in 1.00 L of aqueous solution. The osmotic pressure of the solution at 25°C is 12.7 torr. What is the approximate molar mass of the protein?

_____ states that the amount of gas dissolved in a solution is directly proportional to the pressure of the gas above the solution.

A cucumber is placed in a concentrated salt solution. What is most likely to happen?

A solution is prepared from 31.4 g of a nonvolatile, nondissociating solute and 85.0 g of water. The vapor pressure of the solution at 60°C is 142 torr. The vapor pressure of water at 60°C is 150. torr. What is the molar mass of the solute?

Predict the deviation from Raoult's law when two liquids are mixed and the heat of the solution is large and the reaction endothermic.

The solubility of the salt M_xA_y is 1.0 × 10^-2 mol/L at 25°C. The osmotic pressure exhibited by a solution saturated with M_xA_y at 25°C is 1.22 atm. Determine the values of x and y by assuming ideal behavior.

Consider pure water separated from an aqueous sugar solution by a semipermeable membrane, which allows water to pass freely but not sugar. After some time has elapsed, the concentration of sugar solution

Which of the following concentration measures will change in value as the temperature of a solution changes?

When a nonvolatile solute is added to a volatile solvent, the solution vapor pressure , the boiling point , the freezing point , and the osmotic pressure across a semipermeable membrane .

How many moles of methanol, CH₃OH, dissolved in 450.0 g of water are needed to make a 2.500 m solution?

For each of the following solutions, would you expect it with respect to Raoult's law) to be relatively ideal, to show a positive deviation, or to show a negative deviation? -acetone (C₃H₆O) and water

The lattice energy of NaI is -686 kJ/mol, and its heat of solution is -7.6 kJ/mol. Calculate the hydration of energy of NaI(s) in kJ/mol.

An aqueous solution contains 46.6 g of KNO₃ in 270.8 mL of solution. What is the molarity of the solution?

What is the expected osmotic pressure, in torr, of a 0.0100 M solution of NaCl in water at 25°C?

A 0.2 molar solution of a solute X, in benzene, displays an osmotic pressure given by the formula Π = (0.1)RT. Which of the following is most likely to be the case?

Calculate the molality of a solution containing 22.4 g of C₆H₁₂O₆ in 319.6 mL of water (assume a density of 1.00 g/mL).

A 50.0-g sample of ethyl alcohol (C₂H₅OH) is dissolved in 75.0 g of water. What is the mole fraction of ethyl alcohol?

A solute added to a solvent raises the boiling point of the solution because

If a solution exhibits a negative deviation from Raoult's law, the vapor pressure of the solution is __________ what would be expected ideally.

When 228.8 mL of 0.726 MHCl is diluted with 122.2 mL of water, the molarity of the solution (assuming the volumes are additive) is

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Exam 17: Properties of Solutions

Consider that 45.0 g of a protein has been dissolved in 1.00 L of aqueous solution. The osmotic pressure of the solution at 25°C is 12.7 torr. What is the approximate molar mass of the protein?

_____ states that the amount of gas dissolved in a solution is directly proportional to the pressure of the gas above the solution.

A cucumber is placed in a concentrated salt solution. What is most likely to happen?

A solution is prepared from 31.4 g of a nonvolatile, nondissociating solute and 85.0 g of water. The vapor pressure of the solution at 60°C is 142 torr. The vapor pressure of water at 60°C is 150. torr. What is the molar mass of the solute?

Predict the deviation from Raoult's law when two liquids are mixed and the heat of the solution is large and the reaction endothermic.

The solubility of the salt MxAy is 1.0 × 10-2 mol/L at 25°C. The osmotic pressure exhibited by a solution saturated with MxAy at 25°C is 1.22 atm. Determine the values of x and y by assuming ideal behavior.

Consider pure water separated from an aqueous sugar solution by a semipermeable membrane, which allows water to pass freely but not sugar. After some time has elapsed, the concentration of sugar solution

Which of the following concentration measures will change in value as the temperature of a solution changes?

When a nonvolatile solute is added to a volatile solvent, the solution vapor pressure __________, the boiling point __________, the freezing point __________, and the osmotic pressure across a semipermeable membrane __________.

How many moles of methanol, CH3OH, dissolved in 450.0 g of water are needed to make a 2.500 m solution?

For each of the following solutions, would you expect it with respect to Raoult's law) to be relatively ideal, to show a positive deviation, or to show a negative deviation? -acetone (C3H6O) and water

The lattice energy of NaI is -686 kJ/mol, and its heat of solution is -7.6 kJ/mol. Calculate the hydration of energy of NaI(s) in kJ/mol.

An aqueous solution contains 46.6 g of KNO3 in 270.8 mL of solution. What is the molarity of the solution?

What is the expected osmotic pressure, in torr, of a 0.0100 M solution of NaCl in water at 25°C?

A 0.2 molar solution of a solute X, in benzene, displays an osmotic pressure given by the formula Π = (0.1)RT. Which of the following is most likely to be the case?

Calculate the molality of a solution containing 22.4 g of C6H12O6 in 319.6 mL of water (assume a density of 1.00 g/mL).

A 50.0-g sample of ethyl alcohol (C2H5OH) is dissolved in 75.0 g of water. What is the mole fraction of ethyl alcohol?

A solute added to a solvent raises the boiling point of the solution because

If a solution exhibits a negative deviation from Raoult's law, the vapor pressure of the solution is __________ what would be expected ideally.

When 228.8 mL of 0.726 MHCl is diluted with 122.2 mL of water, the molarity of the solution (assuming the volumes are additive) is

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Stoichiometry

Types of Chemical Reactions and Solution Stoichiometry

Gases

Chemical Equilibrium

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Applications of Aqueous Equilibria

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Quantum Mechanics and Atomic Theory

Bonding: General Concepts

Covalent Bonding: Orbitals

Chemical Kinetics

Liquids and Solids

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The solubility of the salt M_xA_y is 1.0 × 10^-2 mol/L at 25°C. The osmotic pressure exhibited by a solution saturated with M_xA_y at 25°C is 1.22 atm. Determine the values of x and y by assuming ideal behavior.

When a nonvolatile solute is added to a volatile solvent, the solution vapor pressure , the boiling point , the freezing point , and the osmotic pressure across a semipermeable membrane .

How many moles of methanol, CH₃OH, dissolved in 450.0 g of water are needed to make a 2.500 m solution?

For each of the following solutions, would you expect it with respect to Raoult's law) to be relatively ideal, to show a positive deviation, or to show a negative deviation? -acetone (C₃H₆O) and water

An aqueous solution contains 46.6 g of KNO₃ in 270.8 mL of solution. What is the molarity of the solution?

Calculate the molality of a solution containing 22.4 g of C₆H₁₂O₆ in 319.6 mL of water (assume a density of 1.00 g/mL).

A 50.0-g sample of ethyl alcohol (C₂H₅OH) is dissolved in 75.0 g of water. What is the mole fraction of ethyl alcohol?